公开(公告)号：US20120129006A1

公开(公告)日：2012-05-24

申请号：US13388239

申请日：2010-07-30

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： B32B15/01 ,  B23K11/11

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/26 ,  B23K11/312 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2103/04 ,  C22C38/00 ,  Y10T428/12965

摘要： A welding structural part 1 is manufactured by overlapping the surfaces of steel sheets 2, and forming a weld zone by spot welding. The weld zone 3 includes: a weld nugget 4; and a heat affected zone 5 surrounding the weld nugget 4, wherein the hardness in the weld zone increases along an exterior region 6 of the heat affected zone 5 toward the heat affected zone 5, and then decreases along the heat affected zone 5 toward the central region of the weld nugget 4. In the boundary region between the weld nugget 4 and the heat affected zone 5, the weld nugget 4 may have a convex portion 4A bulging into the heat affected zone 5 along the overlapped portion. The steel sheets 2 contain carbon in 0.15 mass % or more.

摘要翻译： 通过重叠钢板2的表面，通过点焊形成焊接区域来制造焊接结构体1。 焊接区3包括：焊点4; 以及围绕焊点4的热影响区域5，其中焊接区域中的硬度沿着热影响区域5的外部区域6朝向热影响区域5增加，然后沿热影响区域5朝向中心 在焊接熔核4与热影响区5之间的边界区域中，焊点4可以具有沿重叠部分向热影响区5内凸出的凸部4A。 钢板2含有0.15质量％以上的碳。

公开(公告)号：US20100051611A1

公开(公告)日：2010-03-04

申请号：US12541877

申请日：2009-08-14

申请人： Kazutomi OKA ,  Fumiaki IKUTA

发明人： Kazutomi OKA ,  Fumiaki IKUTA

IPC分类号： H05B6/10

CPC分类号： C21D1/42 ,  C21D9/02 ,  Y02P10/253

摘要： A hardening apparatus (10), comprising a heating zone (20) induction heating coiled members (12) to a hardening temperature and cooling zone (30) rapidly cooling the coiled members (12) induction heated to the hardening temperature. A carrying route (22) for carrying the coiled members (12) in the direction of arrow A (carrying direction) while the coiled members are rotating and an induction heating coil (24) for induction heating the coiled members (12) being carried on the carrying route (22) while the coiled members are rotating are disposed in the heating zone (20). The large number of coiled members (12) are placed on the carrying route (22) at specified intervals so that the longitudinal direction thereof crosses the carrying direction and carried continuously. While the coiled members (12) are carried, the coiled members (12) are rotated in the outer peripheral direction thereof on the carrying route (22)

摘要翻译： 一种硬化装置（10），包括加热区（20），感应加热盘绕构件（12）到淬火温度和冷却区（30），快速冷却被加热到硬化温度的线圈构件（12）。 用于在线圈构件旋转的同时沿着箭头A的方向（输送方向）承载盘绕构件（12）的输送路径（22）和用于感应加热盘绕构件（12）的感应加热线圈（24） 螺旋构件旋转时的运送路线（22）设置在加热区（20）中。 大量的螺旋构件（12）以规定的间隔放置在运送路线（22）上，使其长度方向与运送方向交叉并连续运送。 当卷绕构件（12）被承载时，螺旋构件（12）沿其外周方向在运送路线（22）上旋转，

公开(公告)号：US20190099829A1

公开(公告)日：2019-04-04

申请号：US16207007

申请日：2018-11-30

申请人： Takahiko KANAI ,  Munehisa HATTA ,  Fumiaki IKUTA ,  Kazuhiro KAWASAKI ,  Eizaburo NAKANISHI ,  Tsuyoshi YOSHIDA ,  Kotobu NAGAI ,  Masao HAYAKAWA ,  Takehiko ITAGAKI

发明人： Takahiko KANAI ,  Munehisa HATTA ,  Fumiaki IKUTA ,  Kazuhiro KAWASAKI ,  Eizaburo NAKANISHI ,  Tsuyoshi YOSHIDA ,  Kotobu NAGAI ,  Masao HAYAKAWA ,  Takehiko ITAGAKI

IPC分类号： B23K11/11 ,  B23K11/24 ,  B23K11/26 ,  B23K11/31 ,  B23K13/08 ,  B23K101/18 ,  B23K103/04

摘要： A method for spot-welding metallic materials includes: sandwiching the metallic materials with a pair of electrodes; a pre-heating step for pre-heating a region different from a given region which should be welded by applying electric power having a high frequency to the pair of electrodes; and a welding step for spot-welding a given region of the metallic materials by applying electric power for welding to the pair of electrodes. The heating time in the pre-heating step and that in the welding step are independently controlled.

公开(公告)号：US09498840B2

公开(公告)日：2016-11-22

申请号：US13388239

申请日：2010-07-30

申请人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

发明人： Takahiko Kanai ,  Munehisa Hatta ,  Fumiaki Ikuta ,  Kazuhiro Kawasaki ,  Eizaburou Nakanishi ,  Masayuki Miyake ,  Kotobu Nagai ,  Masao Hayakawa ,  Takehiko Itagaki

IPC分类号： B23K9/28 ,  B23K11/11 ,  B23K11/24 ,  B23K11/26 ,  B23K11/31 ,  C22C38/00

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/26 ,  B23K11/312 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2103/04 ,  C22C38/00 ,  Y10T428/12965

摘要： A welding structural part 1 is manufactured by overlapping the surfaces of steel sheets 2, and forming a weld zone by spot welding. The weld zone 3 includes: a weld nugget 4; and a heat affected zone 5 surrounding the weld nugget 4, wherein the hardness in the weld zone increases along an exterior region 6 of the heat affected zone 5 toward the heat affected zone 5, and then decreases along the heat affected zone 5 toward the central region of the weld nugget 4. In the boundary region between the weld nugget 4 and the heat affected zone 5, the weld nugget 4 may have a convex portion 4A bulging into the heat affected zone 5 along the overlapped portion. The steel sheets 2 contain carbon in 0.15 mass % or more.

摘要翻译： 通过重叠钢板2的表面，通过点焊形成焊接区域来制造焊接结构体1。 焊接区3包括：焊点4; 以及围绕焊点4的热影响区域5，其中焊接区域中的硬度沿着热影响区域5的外部区域6朝向热影响区域5增加，然后沿热影响区域5朝向中心 在焊接熔核4与热影响区5之间的边界区域中，焊点4可以具有沿重叠部分向热影响区5内凸出的凸部4A。 钢板2含有0.15质量％以上的碳。

公开(公告)号：US20150306696A1

公开(公告)日：2015-10-29

申请号：US14738364

申请日：2015-06-12

申请人： Takahiko KANAI ,  Munehisa HATTA ,  Fumiaki IKUTA ,  Kazuhiro KAWASAKI ,  Eizaburo NAKANISHI ,  Tsuyoshi YOSHIDA ,  Kotobu NAGAI ,  Masao HAYAKAWA ,  Takehiko ITAGAKI

发明人： Takahiko KANAI ,  Munehisa HATTA ,  Fumiaki IKUTA ,  Kazuhiro KAWASAKI ,  Eizaburo NAKANISHI ,  Tsuyoshi YOSHIDA ,  Kotobu NAGAI ,  Masao HAYAKAWA ,  Takehiko ITAGAKI

IPC分类号： B23K11/11 ,  B23K13/08 ,  B23K11/24

CPC分类号： B23K11/115 ,  B23K11/24 ,  B23K11/241 ,  B23K11/26 ,  B23K11/312 ,  B23K13/08 ,  B23K2101/18 ,  B23K2103/04

摘要： A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment sandwiches metallic materials with a pair of electrodes, and heats different regions of the metallic materials by energization, with the pair of electrodes maintained at the same position with respect to the metallic materials. The welding equipment includes a first heating means connected to the pair of electrodes for heating and welding the internal region of the circle defined by projecting the cross-sectional area of the axis of the electrodes on the metallic materials by applying power having a low first frequency, a second heating means for heating a ring-shaped region along the circle by applying power having a second frequency that is higher than the first frequency, and an energization control unit for independently controlling the first and the second heating means.

摘要翻译： 提供了一种能够进行热处理的金属材料的焊接设备，例如在点焊中基于部分加热的回火。 焊接设备用金属材料夹着一对电极，通过激励加热金属材料的不同区域，同时电极对相对于金属材料保持在相同的位置。 焊接设备包括连接到一对电极的第一加热装置，用于加热和焊接通过施加具有低的第一频率的功率而将电极的轴线的横截面积投影在金属材料上的圆的内部区域 第二加热装置，用于通过施加具有高于第一频率的第二频率的功率沿着圆加热环形区域;以及通电控制单元，用于独立地控制第一和第二加热装置。

公开(公告)号：US20100258553A1

公开(公告)日：2010-10-14

申请号：US12677709

申请日：2008-09-10

申请人： Yue Yang ,  Fumiaki Ikuta ,  Taichi Kitamura

发明人： Yue Yang ,  Fumiaki Ikuta ,  Taichi Kitamura

IPC分类号： H05B6/10

CPC分类号： C21D1/42 ,  C21D1/10 ,  C21D11/00 ,  Y02P10/253

摘要： An induction hardening monitoring apparatus (20) comprising: a current sensor (21) for detecting output current from a high-frequency inverter (11); a voltage sensor for detecting a voltage generated in a heating coil (14) connected between output terminals of the high-frequency inverters (11) together with a capacitor (12) in an equivalent circuit manner; and a controller (23) for monitoring a hardening processing based on a detection signal from the current sensor (21) and a detection signal from a voltage sensor (22), wherein the controller (23) monitors a hardening processing by calculating an effective value of output current from the high-frequency inverter (11) based on a detection signal from the current sensor (21) and calculating an effective value of voltage generated in a heating coil (14) based on a detection signal from the voltage sensor (22); or further calculating load impedance based on each effective value.

摘要翻译： 一种感应淬火监测装置（20），包括：用于检测来自高频逆变器（11）的输出电流的电流传感器（21）; 电压传感器，用于以等效电路方式检测在高频逆变器（11）的输出端子与电容器（12）之间连接的加热线圈（14）中产生的电压; 以及控制器（23），用于基于来自电流传感器（21）的检测信号和来自电压传感器（22）的检测信号来监视硬化处理，其中控制器（23）通过计算有效值来监视硬化处理 基于来自电流传感器（21）的检测信号，从高频逆变器（11）输出的输出电流，根据来自电压传感器（22）的检测信号，计算加热线圈（14）中产生的电压的有效值 ）; 或基于每个有效值进一步计算负载阻抗。

公开(公告)号：US07358467B2

公开(公告)日：2008-04-15

申请号：US10568445

申请日：2004-08-19

申请人： Yue Yang ,  Fumiaki Ikuta ,  Shinichi Takase ,  Gorou Atsuta

发明人： Yue Yang ,  Fumiaki Ikuta ,  Shinichi Takase ,  Gorou Atsuta

IPC分类号： H05B6/10 ,  H02M7/48

CPC分类号： H05B6/04

摘要： A converter (311) converts an AC electric power (e) to the DC electric power with a DC voltage value corresponding to a setting. An inverter (312) is controlled by a frequency electric power control circuit (330) to convert the DC electric power to a dual frequency AC electric power for alternately outputting low and high frequencies at a frequency ratio (duty) corresponding to the setting. A matching transformer (321) having a tap (321C) at which the resonance impedance corresponds to the output impedance of a generator (310) receives the dual frequency AC electric power. A low-frequency series resonance circuit (325) or a high-frequency series resonance circuit (326) is caused to provide a series resonance, thereby causing an induction heating coil (200) to induction heat a workpiece-to-be-heated (201). In this way, the single generator (310) and the single induction heating coil (200) are used to effectively induction heat the workpiece-to-be-heated (201) by means of the dual frequency resonance.

摘要翻译： A转换器（311）以对应于设定值的直流电压值将交流电功率（e）转换为直流电功率。 变频器（312）由频率电力控制电路（330）控制，以将DC电力转换为双频交流电力，以与设定值对应的频率比（占空比）交替地输出低频和高频。 具有谐振阻抗对应于发电机（310）的输出阻抗的抽头（321C）的匹配变压器（321）接收双频AC电力。 使低频串联谐振电路（325）或高频串联谐振电路（326）提供串联谐振，从而使感应加热线圈（200）感应加热被加热物（ 201）。 以这种方式，单个发生器（310）和单个感应加热线圈（200）用于通过双频谐振来有效地感应加热被加热物（201）。

公开(公告)号：US07011720B2

公开(公告)日：2006-03-14

申请号：US10070534

申请日：2001-10-24

申请人： Tetsukazu Hukuhara ,  Fumiaki Ikuta

发明人： Tetsukazu Hukuhara ,  Fumiaki Ikuta

IPC分类号： C22C38/00 ,  C21D9/52

CPC分类号： C21D9/60 ,  C21D11/00 ,  Y02P10/253

摘要： A double tapered steel wire (S) is evenly heat treated over the entire length thereof. The wire (S) has its constant-diameter straight portion (21, 24) disposed between its opposite end tapered portions (22, 23) each tapered down to its reduced-diameter outer end. In heat treatments, a diameter of the wire (S) is continuously detected by a detection means (3, 6), so that the amount of energy of induction heating applied to the wire (S) is controlled by a control unit (12) in a manner such that the amount of the energy is proportional to a wire diameter of the wire (S) having been detected, whereby heat applied to the wire (S) varies over the entire length of the wire (S). As a result, the wire (S) is quenched and tempered over its entire length in a manner such that the wire (S) thus heat treated has its small-diameter portions (24) and its large-diameter portion (21) differ from each other in tensile strength.

摘要翻译： 双锥形钢丝（S）在其整个长度上均匀地热处理。 线（S）具有设置在其相对端锥形部分（22,23）之间的恒定直径的直线部分（21,24），每个锥形部分的锥度减小到其缩径的外端。 在热处理中，通过检测装置（3,6）连续地检测线（S）的直径，使得施加到线（S）的感应加热的能量由控制单元（12）控制， 以使得能量的量与已经检测到的线（S）的线直径成比例，由此施加到线（S）的热在线（S）的整个长度上变化。 结果，线（S）在其整个长度上被淬火和回火，使得这样热处理的线（S）具有其小直径部分（24），并且其大直径部分（21）不同于 互相拉伸强度。

公开(公告)号：US07442906B2

公开(公告)日：2008-10-28

申请号：US10553802

申请日：2005-04-08

申请人： Yoshimasa Tanaka ,  Takeshi Endoh ,  Yutaka Kiyosawa ,  Fumiaki Ikuta ,  Takashi Horino ,  Masayuki Komatsu ,  Jun Fujie ,  Takeshi Yoshikawa

发明人： Yoshimasa Tanaka ,  Takeshi Endoh ,  Yutaka Kiyosawa ,  Fumiaki Ikuta ,  Takashi Horino ,  Masayuki Komatsu ,  Jun Fujie ,  Takeshi Yoshikawa

IPC分类号： H05B6/10 ,  H05B6/44 ,  C21D1/10

CPC分类号： C21D1/42 ,  C21D9/28 ,  H05B6/36 ,  H05B6/40 ,  Y02P10/253

摘要： In an induction heating coil for heating a shaft member having multiple steps, annular conductors are separately disposed in the axis direction, the annular conductors having inner diameters so as to form predetermined gaps with outer peripheries of heating portions of the shaft member, the lengths of annular conductors (1, 2, and 3) are set so that the areas of the respective heating portions are approximately equal to each other, and the annular conductors are connected to each other in series, so that the respective step shaft portions of the shaft member are uniformly heated. The annular conductors described above may be formed to have shapes in conformity with the shapes of the heating portions of the shaft member and may be formed to have a step shape corresponding to steps of the shaft member having different outer diameters. In addition, at least one annular protrusion is provided for at least one of the annular conductors at a place corresponding to a root of a step of the shaft member so as to heat the root of the shaft.

摘要翻译： 在用于加热具有多个台阶的轴构件的感应加热线圈中，环形导体在轴向方向上分开设置，环形导体具有内径，以便与轴构件的加热部分的外周形成预定的间隙， 环形导体（1,2和3）被设置成使得各个加热部分的面积大致相等，并且环形导体彼此串联连接，使得轴的相应的台阶轴部分 构件均匀加热。 上述环状导体可以形成为与轴构件的加热部的形状一致的形状，并且可以形成为具有对应于具有不同外径的轴构件的台阶的台阶形状。 此外，在对应于轴构件的台阶的根部的位置处，至少一个环形导体提供至少一个环形突起，以便加热轴的根部。

公开(公告)号：US20070204939A1

公开(公告)日：2007-09-06

申请号：US10598160

申请日：2004-02-20

申请人： Kazutomi Oka ,  Fumiaki Ikuta

发明人： Kazutomi Oka ,  Fumiaki Ikuta

IPC分类号： C21D1/42 ,  C21D1/63

CPC分类号： C21D1/42 ,  C21D9/02 ,  Y02P10/253

摘要： A hardening apparatus (10), comprising a heating zone (20) induction heating coiled members (12) to a hardening temperature and cooling zone (30) rapidly cooling the coiled members (12) induction heated to the hardening temperature. A carrying route (22) for carrying the coiled members (12) in the direction of arrow A (carrying direction) while the coiled members are rotating and an induction heating coil (24) for induction heating the coiled members (12) being carried on the carrying route (22) while the coiled members are rotating are disposed in the heating zone (20). The large number of coiled members (12) are placed on the carrying route (22) at specified intervals so that the longitudinal direction thereof crosses the carrying direction and carried continuously. While the coiled members (12) are carried, the coiled members (12) are rotated in the outer peripheral direction thereof on the carrying route (22)

摘要翻译： 一种硬化装置（10），包括加热区（20），感应加热盘绕构件（12）到淬火温度和冷却区（30），快速冷却被加热到硬化温度的线圈构件（12）。 用于在线圈构件旋转的同时沿着箭头A的方向（输送方向）承载盘绕构件（12）的输送路径（22）和用于感应加热盘绕构件（12）的感应加热线圈（24） 螺旋构件旋转时的运送路线（22）设置在加热区（20）中。 大量的螺旋构件（12）以规定的间隔放置在运送路线（22）上，使其长度方向与运送方向交叉并连续运送。 当卷绕构件（12）被承载时，螺旋构件（12）沿其外周方向在运送路线（22）上旋转，